'adenomatous' originates from the Greek word 'adēn,' meaning 'gland,' combined with the suffix '-oma,' indicating a tumor, and '-tous,' meaning 'full of or having the nature of.'

'Adenomatous' evolved from the Greek 'adēn' through Latin 'adenoma,' eventually becoming the modern English word 'adenomatous.'

Initially, it referred specifically to glandular tumors, but over time it has come to describe anything resembling or related to an adenoma.